Create procedure mysql with parameters
Summary: in this tutorial, you will learn how to create stored procedures with parameters, including Show
Introduction to MySQL stored procedure parametersOften, stored procedures have parameters. The parameters make the stored procedure more useful and reusable. A
parameter in a stored procedure has one of three modes: IN parameters
In addition, the value of an OUT parametersThe value of an Notice that the stored procedure cannot access the initial value of the INOUT parametersAn Defining a parameterHere is the basic syntax of defining a parameter in stored procedures:
In this syntax,
MySQL stored procedure parameter examplesLet’s take some examples of using stored procedure parameters. The IN parameter exampleThe following example creates a stored procedure that finds all offices that locate in a country specified by the input parameter
In this example, the
Suppose that you want to find offices locating in the USA, you need to pass an argument (
To
find offices in
Because the
Here’s the error:
The OUT parameter exampleThe following stored procedure returns the number of orders by order status.
The stored procedure
To find the number of orders that already shipped, you call
To get the number of orders that are in-process, you call
the stored procedure
The INOUT parameter exampleThe following example demonstrates how to use an
In this example, the stored procedure These statements illustrate how to call the
Here is the output: In this tutorial, you have learned how create stored procedures with parameters including
Was this tutorial helpful? How do I create a procedure with parameters in MySQL?In the syntax:. The name of the procedure must be specified after the Create Procedure keyword.. After the name of the procedure, the list of parameters must be specified in the parenthesis. The parameter list must be comma-separated.. The SQL Queries and code must be written between BEGIN and END keywords.. How do I create a stored procedure with parameters in MySQL Workbench?First, specify the parameter mode, which can be IN , OUT or INOUT depending on the purpose of the parameter in the stored procedure. Second, specify the name of the parameter. The parameter name must follow the naming rules of the column name in MySQL. Third, specify the data type and maximum length of the parameter.
Can a procedure have parameters?A parameter represents a value that the procedure expects you to supply when you call it. The procedure's declaration defines its parameters. You can define a procedure with no parameters, one parameter, or more than one. The part of the procedure definition that specifies the parameters is called the parameter list.
Can a stored procedure use parameters?Parameters are used to exchange data between stored procedures and functions and the application or tool that called the stored procedure or function: Input parameters allow the caller to pass a data value to the stored procedure or function.
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